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FRP大跨编织网结构是一种新型大跨空间结构体系,它由FRP板条按一定规律编织并通过平面外整体张拉构成,具有很好的建筑效果。此结构体系为柔性构件构成的空间整体张拉结构,有4个关键受力状态。该文研究圆形环梁、板条中心对称分布的典型的单层FRP编织网结构,提出了编织网结构力学分析的基本假设和通用力学分析模型,对单层网面进行了平面外整体张拉、全跨荷载工况和半跨荷载工况的理论分析,推导了相应的计算公式,并进行了编织网结构的计算。通过研究建立的FRP编织网结构的基本力学方程,可分析计算单层编织网的各个受力状态,为FRP编织网结构的设计计算提供了理论工具。还进行了参数分析,得到了各参数对结构在使用过程中刚度的影响规律,为FRP编织网结构的初步设计提供了参考。
FRP long-span braided mesh structure is a new type of large-span space structure system. It is composed of FRP slats according to a certain regular braid and overall out-of-plane tensioning, which has good construction effect. The structural system is a flexible structure consisting of the overall tension of the space structure, there are four key state of stress. In this paper, a typical single-layer FRP braided mesh structure with symmetrical circular ring beams and slats is studied. The basic assumptions and general mechanical analysis models of the braided mesh structure are proposed. Pull, full-span load conditions and half-load conditions of the theoretical analysis, derived the corresponding formula, and the calculation of braided net structure. By studying the basic mechanical equations of the FRP braided mesh structure, the stress states of the braided mesh can be analyzed and calculated, which provides a theoretical tool for the design and calculation of FRP braided mesh structure. The parameter analysis was also carried out. The influence of each parameter on the stiffness of the structure during use was obtained, which provided a reference for the preliminary design of FRP braided mesh structure.